Senses part A perceiving your environment

Senses part A perceiving your environment

Welcome

• True or false sense animal facts 
• Candy experience 
• Time for homework

True or false?

Red is false

Green is true

Catfish can taste (proeven) 10 times than humans

True, humans have 100 000 taste buds. Catfish have 10 000 000 taste buds 

Frogs do not hear (horen) sound because they do not have ears

The star nosed mole can smell (ruiken) in water 

True, the mole blows up air out it's nose. Inside this air bubble the mole is able to smell 

The box jellyfish do not have eyes

False, box jelly fish have 24 eyes!

New chapter senses (zintuigen)

This week we will cover part A perceiving your environment.

 

After this basic you can... 

... list the senses along with their locations and their stimuli.

...  describe how the senses work.

 

Focus of today!

Goals of today

I can write structured sentences about senses and their stimuli. 

I can list the senses along with their locations and their stimuli.

Candy experience

Grab your notebook and write down the following sentences 

1. The colour of the candy is...

2. If I roll the candy in my hand I feel ...

3. If I smell the candy, I smell... 

4. If I taste the candy, I taste 

Colour, texture, smell and taste are examples of stimuli (prikkels)

Candy experience

Everyone receives a piece of candy. Now complete the sentences in your notebook

1. The colour of the candy is...

2. If I roll the candy in my hand I feel ...

3. If I smell the candy, I smell... 

4. If I taste the candy, I taste ...

Sense organs

For each step we need a organ. Write after each step what organ you need, this is called a sense organ (zintuig)

1. The colour of the candy is...

2. If I roll the candy in my hand I feel ...

3. If I smell the candy, I smell... 

4. If I taste the candy, I taste ...

Time for a new page in the notebook

• Draw a circle 
• Write down sense organ and their stimuli 
• Remember a sense organ is an organ that is sensitive (gevoelig) for a stimuli
• A stimuli is an influence (invloed) from the environment (omgeving) of an organism
• We fill in the mind map together

Homework

Unit senses

A perceiving your environment

Part 2 

Question a - g

Almost time to say goodbye

Write down in one sentence what you have learned today in your notebook

Welcome!

Remember sense organs and their stimuli?

Instruction sense pathway

Homework time 

Goals of today I can...

... list and tell different sensations that I feel.

... make notes with help of the slides of the teacher.

... list the senses along with their locations and their stimuli.

... describe how the senses work.

Do you remember the sense organs and their stimuli?

• In silence, take a walk trough the classroom and write on different places the sensations that you feel on senses wheel
• Write as many answers as possible. 
• You will have 2 minutes time

What did you feel?

• In silence, take a walk trough the classroom and write on different places the sensations that you feel on senses wheel

• What sense organ match with the sensation you felt? 
• Example: I can smell the coffee. I use my nose to smell 

Time to make some notes

Grab your notebook and a pen

Unit Sense

Basic A perceiving your environment

From stimuli to action

?

Stimuli
Smell of coffee picked up by nose

Action

Drinking coffee

Black box? 

No your brain

Perception (waarneming)

• Starts with a stimulus (prikkel) in a sense organ (zintuig). 
• The stimulus is transported as a impuls (elektrisch signaal) to your brain. 
• In the brain you perceive the stimulus. 
• From the brain a new impulse is send to muscles or gland (klieren) to react on the stimulus.

Examples of glands

Sweat gland

Salvia gland 

Time to work

Unit senses

A perceiving your environment

Part 1

Question a - d 

We will revise the questions at ...

Welcome!

• Recap senses pathway
• Last instruction of part A
• Homework 

After today I can ...

• ... put the different steps of a sense pathway in the correct order.
• ... explain the different steps of a sense pathway in words.
• ... list the senses along with their locations and their stimuli.
• ... describe how the senses work.

Perception (waarneming)

• Starts with a stimulus (prikkel) in a sense organ (zintuig). 
• The stimulus is transported as a impuls (electric signal) to your brain. 
• In the brain you perceive the stimulus. 
• From the brain a new impulse is send to muscles or gland (klieren) to react on the stimulus.

Let's practice

• In the next slides you will see pictures of different scenes. 
• For each scene you need to put the sense pathway in the correct order
• Each part of the sense pathway is printed on paper
• When your done you will put the pathway in the air

Example 1

• What is the stimulus? 
• What is the sense organ?
• What is the respons? 
• Put the sense pathway in the correct order.
• Done? Show your pathway in the air! 

Example 2

• What is the stimulus? 
• What is the sense organ?
• What is the respons? 
• Put the sense pathway in the correct order.
• Done? Show your pathway in the air! 

Example 3

• What is the stimulus? 
• What is the sense organ?
• What is the respons? 
• Put the sense pathway in the correct order.
• Done? Show your pathway in the air! 

Example 4

• What is the stimulus? 
• What is the sense organ?
• What is the respons? 
• Put the sense pathway in the correct order.
• Done? Show your pathway in the air! 

Example 5

• What is the stimulus? 
• What is the sense organ?
• What is the respons? 
• Put the sense pathway in the correct order.
• Done? Show your pathway in the air! 

Grab your notebook and a pencil

Go back to your notes of unit Senses, basic A perceiving your environment. 

What is the difference between whisper and loud barks?

Treshold 

• An impulse is only send to the brain if the stimulus is strong enough = treshold value (drempelwaarde)
• The more impulses are send to brain the stronger the stimulus impuls are send to the brain

Habituation (gewenning)

• If a stimuli is constant present after some time no impuls is send anymore. 
• The response is gone.
• For example the feeling of your clothes on your skin

Time to work

Unit senses

A perceiving your environment

Part 3

Question a - b

We will revise the questions at ...